Effects of Paeonia lactiflora Extract on Estrogen Receptor β, TPH2, and SERT in Rats with PMS Anxiety

Figure 2

Photomicrograph of cells in each phase of rat estrus cycle. (a) Preestrus. Vaginal smears included mostly nucleated epithelial cells, occasionally with a small amount of keratinization, and no leukocyte. (b) Midestrus. Vaginal smears included mostly nucleated keratinocytes, a small amount of epithelium, and no white blood cells. (c) Late estrus. Vaginal smears included keratinocytes, nucleated epithelial cells, and white blood cells. (d) Diestrus. Vaginal smears included a large number of white blood cells and a small amount of epithelial cells and mucous cells. Left panel, 10×; right panel, 40×.

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